Home / 108,292.20-162,438.30-103,626.60

Finding the Fourth Proportional to 108,292.20, 162,438.30 and 103,626.60

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Solution

The fourth proportional to 108,292.20, 162,438.30 and 103,626.60 is: 155,439.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,292.20 : 162,438.30 = 103,626.60 : x
  2. Step 2: Convert to fraction form
    108,292.20/162,438.30 = 103,626.60/x
  3. Step 3: Cross multiply
    108,292.20x = 162,438.30 × 103,626.60
  4. Step 4: Simplify right side
    108,292.20x = 16,832,928,738.78
  5. Step 5: Solve for x
    x = 16,832,928,738.78/108,292.20
  6. Step 6: Final answer
    x = 155,439.90

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.